The singer and actress plays a woman who adopts a tot from Ethiopia in the film, which is based on the pregnancy manual of the same name.

And, according to The Daily Mirror, the star fell in love with the twins who alternated as her on-screen baby.

J-Lo, who is mum to twin toddlers Max and Emme, said: "It's funny because before the movie I never really thought about adoption. I just always wanted to have my own baby and I was so focused on that, and it took me a while to have my own.

"But after the film and during the making of the film when I held those two little Ethiopian twins, I fell in love instantly and I can see how somebody can do this, how it is so easy to embrace a child who has nothing."